• 35mm 861.6mm2
  • 42.4 megapixels
  • ISO 100 - 32,000
  • 1 inch 116.2mm2
  • 20.2 megapixels
  • 24.00mm - 120.00mm (35mm eq.)

Buy From

Differences

Sony A7R III advantages over Canon G5X Mark II

  • Larger sensor
    35mm vs 1 inch
    More sensor area. Bigger is (generally) better.
  • Bigger pixels
    ~ 4.51 vs 2.41 microns
    Better low-light and dynamic range (all else equal)
  • High resolution composite
    Yes vs No
    Combine multiple shots to form a super hi-res version
  • NFC
    Yes vs No
    Simplifies pairing your camera with supported phones
  • Longer video battery life
    100 vs 55 minutes
    Capture more video
  • On-sensor phase detect
    Yes vs No
    Usually improves live view and video AF performance
  • Longer stills battery life
    More info 650 vs 230 shots
    Capture more photos
  • External Mic Jack
    Jack vs No jack
    Improved sound fidelity when shooting video
  • Shoots 24p video
    Yes vs No
    Gives your movies a big-screen feel
  • Hot shoe
    Hot shoe vs None
    Off-camera flashes open new possibilities
  • More pixels
    42.4 vs 20.2 megapixels
    Higher resolution photos
  • Dual card slots
    Yes vs No
    Gives you more storage flexibility
  • Headphone jack
    Yes vs No
    Monitor audio recording while you shoot video
  • Lacks anti-aliasing filter
    No Filter vs Filter
    Enjoy sharper photos
  • Higher extended ISO
    102400 vs 25600 ISO
    Higher extended ISO can give more low-light flexibility

Canon G5X Mark II advantages over Sony A7R III

  • Less expensive
    $899* vs $1805
    Save money for lenses or accessories
  • In-camera panoramas
    Yes vs No
    Stitches multiple shots into a panoramic photo
  • Internal flash
    Internal flash vs None
    Useful in a pinch for fill flash
  • Integrated ND filter
    Yes vs No
    Shoot in daylight with a large aperture or slow shutter
  • Thinner
    46 mm vs 73 mm
    Thinner
  • Higher max flash sync
    1/2000 vs 1/250 sec
    Reduce the effect of ambient light in flash shots
  • Lighter weight
    340g vs 657g
    Lighter weight
  • Less shutter lag
    0.15 vs 0.25 sec
    Focus and take a photo quickly (wide angle)
  • Has anti-aliasing filter
    Filter vs No Filter
    Reduces unsightly moiré in photos
  • Faster JPEG shooting
    20.0 fps vs 9.9 fps
    Faster JPEG shooting (burst mode)
  • Faster RAW shooting
    30.0 fps vs 9.2 fps
    Faster RAW shooting in burst mode
  • Bigger RAW buffer
    71 vs 30 shots
    Larger buffer for RAW shots (burst mode)
  • Faster shutter
    1/25600 vs 1/8000 sec
    Shoot wide open in bright light

Similarities

Common Strengths

  • Rear display
    Both provide
    Review photos on the back of the camera
  • Focus peaking
    Both provide
    Your camera will highlight what's in focus
  • Eye-level viewfinder
    Both provide
    You'll be able to frame photos even when the sun is out
  • In-Camera Image Stabilization
    Both provide
    Reduces the effects of camera shake at slower shutter speeds
  • Shoot 4K video
    Both provide
    Make sure you have a fast computer
  • Touchscreen
    Both provide
    Interact with your camera just like your smartphone
  • Tiltable Screen
    Both provide
    Tilt the screen for shooting flexbility
  • RAW file ability
    Both provide
    Gives you more flexibility to develop your photos later
  • Built-in Wi-Fi
    Both provide
    Share your photos wirelessly
  • Built-in Bluetooth
    Both provide
    Always-on wireless connectivity
  • Manual focus
    Both provide
    AF is for the weak. Real photographers focus manually.
  • HDMI out
    Both provide
    Use HDMI output to monitor or review video
  • Bulb shutter
    Both provide
    Hold the shutter open manually for long exposures
  • Slow-motion videos
    Both provide
    Shoot slow-motion videos

Common Weaknesses

  • Tilt-swivel screen
    Neither provide
    Tilt and swivel the screen for maximum shooting flexibility
  • Built-in GPS
    Neither provide
    Geotag your photos
  • Top deck display
    Neither provide
    Check settings with a screen on top of the camera

User reviews

Buy From

Your purchases support this site

Buy the Sony A7R III

Review Excerpt

  • Fantastic image quality; Improved dynamic range over its predecessor; Very good high ISO performance; Much improved real-world AF performance; Class-leading burst rates, even with RAW; Improved 5-axis in-body image stabilization; Better 4K video quality; 1080/120fps video; Dual card slots; Significantly better battery life.

  • Expensive; Menus still confusing; UHS-II support only on one card slot; No optical low-pass filter means greater risk of moire; No built-in flash; Buffer clearing still slow despite UHS-II support.

The Competition

Compared to Sony A7R II

Sony A7R III
Sony A7R II
  • $2151
  • 35mm
  • Touchscreen
  • High resolution composite
  • $2348
  • 35mm
  • In-camera panoramas
Canon G5X Mark II
Sony A7R II
  • $899
  • 1 inch
  • Less expensive
  • Touchscreen
  • $2348
  • 35mm
  • Larger sensor
  • Bigger pixels

Compared to Canon G7X Mark II

Sony A7R III
Canon G7X Mark II
  • $2151
  • 35mm
  • Larger sensor
  • Eye-level viewfinder
  • $700
  • 1 inch
  • Less expensive
  • Internal flash
Canon G5X Mark II
Canon G7X Mark II
  • $899
  • 1 inch
  • Eye-level viewfinder
  • Shoot 4K video
  • $700
  • 1 inch
  • Less expensive
  • NFC

Compared to Canon G7X Mark III

Sony A7R III
Canon G7X Mark III
  • $2151
  • 35mm
  • Larger sensor
  • Eye-level viewfinder
  • $1042
  • 1 inch
  • Less expensive
  • In-camera panoramas
Canon G5X Mark II
Canon G7X Mark III
  • $899
  • 1 inch
  • Eye-level viewfinder
  • More telephoto lens reach
  • $1042
  • 1 inch
  • Less expensive
  • External Mic Jack

Compared to Sony A7R IV

Sony A7R III
Sony A7R IV
  • $2151
  • 35mm
  • Less expensive
  • Bigger pixels
  • $3120
  • 35mm
  • Fast startup
  • More pixels
Canon G5X Mark II
Sony A7R IV
  • $899
  • 1 inch
  • Less expensive
  • In-camera panoramas
  • $3120
  • 35mm
  • Larger sensor
  • Bigger pixels

Compared to Nikon Z7 II

Sony A7R III
Nikon Z7 II
  • $2151
  • 35mm
  • Less expensive
  • High resolution composite
  • $2330
  • 35mm
  • Top deck display
  • Newer
Canon G5X Mark II
Nikon Z7 II
  • $899
  • 1 inch
  • Less expensive
  • In-camera panoramas
  • $2330
  • 35mm
  • Larger sensor
  • Bigger pixels
Compare Other Cameras?